The subject of this blog post might as well be catalogued as being among those things that scientists say that makes my head explode. In this case, sitting in the Bloomington Starbucks across from Sample Gates about a month ago, I heard a cognitive science (currently dissertating) PhD candidate say something to the effect: “It’s raw data, so there is no possibility of it being biased.” He was talking to a colleague, defending against some onslaught presented by a journal article, the title of which I didn’t catch. What I want to emphasize is the erroneous thinking of this student, who has since this time successfully defended his PhD thesis. I shake my head at this kind of lack of understanding so many scientists have of their own field and the general nature of science. Particularly egregious was his follow-up comments, which asserted that biasing cannot be added to unbiased data without it being extreme and obvious to all, as if the heavens would open and Zeus would callout, “biased!,” if such were to happen. I’ll only deal with the first statement that I paraphrased above.